#include "ClassA.h"

ClassA::ClassA() : _pNumber(new int(0))
{
}

ClassA::ClassA(const ClassA& other)
{
	// shallow copy
	//_pNumber = other._pNumber;

	// deep copy
	_pNumber = new int(*other._pNumber);
}

ClassA::~ClassA()
{
	if (_pNumber != nullptr)
	{
		delete _pNumber;
		_pNumber = nullptr;
	}
}